British Standard Simplex Reverse Taper Bored/Bushed Sprockets

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For British Standard Roller Chains to BS228-DIN8187-ISO606R

The Standard Design format of Taper Bush Sprocket, is for the Bush to be fitted from the boss side, and for most applications this does not create any major problem.

However when the drive sprocket is required to fit directly onto a Motor or Gearbox that has only a limited shaft length or when access to the locking Screws is restricted to one side, then it can prove difficult to tighten the locking screws into place. Hence the need for the Bush to fit in from the Teeth side, commonly known as a Reverse Taper Bored Sprocket.

The company now produces a Standard Stock Range of Reverse Taper Bored Sprockets which has been developed through its experience of Servicing its Customers over many years. Although this range now covers a number of Tooth and Pitch sizes, it is not endless. Therefore if you can not find the Tooth or Pitch size you are looking for here, then please do contact the Sales Department, as they can be produced upon request on short lead times.

Range of Sizes

Note: We are continuously adding to or Extending our Ranges, hence if you cannot find it listed here, then please contact us via the ENQUIRY link on each page.


Alt. Shaft Fixing

As an alternative to either Boring & Keywaying a pilot bore sprocket or using a Taper bored sprocket and Bush. Why not take a look at the range of Locking Bushes we now offer, as they eliminate the need for fixing via a Keyway-Key thereby providing the added benefit of a uniform distribution of the drive load over the entire diameter of the bush.

View Range

Heat Treatments

  • FLAME HARDEN TEETH – Without Certificate
  • INDUCTION HARDEN TEETH – With Certificate
  • CASE HARDENING – With or Without Certificate


Beside the Reworking Service the company offers a Full Manufacturing
Service that caters for:-

  • Any requirement outside the stock range.
  • Customers own drawing requirement.
  • When a stock sprocket is not suitable.

View our manufacturing capacity

Plating Service

A Full range of add on Plating Finishes is available :-

  • Zinc (Clear & Yellow)
  • Nickel
  • Chemically Black Phosphate
  • Hard Anodising for Aluminium Products!



View our Introduction to Roller Chain Sprockets, including how to identify and how to improve the life of your drive sockets by upto 50%. View here. A new quick & easy alternative to using a Taper Bush would be the new series of Locking Bushes as these only require a plain bore within the mounting drive sprocket or pulley. View list of locking brushes.

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